All data are in degrees Fahrenheit

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Water temperature in Holyhead

Detailed information about the current water temperature in Holyhead. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Holyhead now

47.3

°F

March 12, 06:06

Trend:

stable

Yesterday:

47.3°F

Tomorrow:

47.3°F

Sunrise:

06:41

Sunset:

18:17

Day Length:

11 h. 36 min.

Holyhead in March

Minimum:

48.2°F

Average:

49.6°F

Maximum:

50.8°F

Sea water temperature in Holyhead today

As of now, in Holyhead, the water temperature is 47.3°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.6°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 47.0°F on 2024, while the historical minimum was 43.3°F on 2018.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 47.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Holyhead

Date Current Year

actual* / forecast**

last year 10 years average
Feb 26 47.2°F 47.7°F 46.5°F
Feb 27 46.8°F 47.9°F 46.5°F
Feb 28 47.1°F 47.0°F 46.3°F
Mar 1 47.0°F 47.5°F 46.2°F
Mar 2 46.5°F 47.1°F 46.1°F
Mar 3 46.6°F 47.2°F 46.1°F
Mar 4 47.0°F 47.1°F 46.0°F
Mar 5 46.9°F 47.1°F 46.0°F
Mar 6 47.2°F 47.1°F 45.9°F
Mar 7 47.3°F 46.9°F 46.0°F
Mar 8 46.9°F 47.5°F 46.0°F
Mar 9 47.1°F 47.4°F 45.8°F
Mar 10 47.5°F 47.3°F 45.9°F
Mar 11 47.3°F 47.2°F 45.7°F
Mar 12 47.3°F 47.0°F 45.6°F
Mar 13 47.3°F 46.8°F 45.7°F
Mar 14 47.2°F 46.6°F 45.6°F
Mar 15 47.1°F 46.3°F 45.5°F
Mar 16 47.3°F 46.7°F 45.6°F
Mar 17 47.6°F 46.7°F 45.9°F
Mar 18 47.5°F 46.7°F 45.9°F
Mar 19 47.7°F 32.0°F 46.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Holyhead by month

In an average year, Holyhead offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Holyhead was recorded on September 7, 2023, reaching a 63.3°F. While the coldest temperature occurred on March 9, 2018, dipping to 43.0°F. The average readings by season are 48.6°F in Winter, 48.3°F in Spring, 57.8°F in Summer, and 57.8°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Caernarfon 47.1°F 19mi
Bangor 46.2°F 21mi
Conwy 45.4°F 33mi
Douglas 47.8°F 59mi
Aberystwyth 46.1°F 66mi

* current water temperature in this city

** straight line distance from Holyhead